Description
bzip2 contains an off‑by‑one error in the bzip2recover utility. When processing a specially crafted file, the application performs an out‑of‑bounds write to a global buffer, resulting in memory corruption and a crash (denial of service). This issue was fixed in bzip2 patch 35d122a3df8b0cc4082a4d89fdc6ee99f375fe67
References (4)
Core 4
Core References
Third Party Advisory third-party-advisory
https://cert.pl/en/posts/2026/05/CVE-2026-42250/
Product product
https://sourceware.org/bzip2/
Vendor Advisory vendor-advisory
https://inbox.sourceware.org/bzip2-devel/[email protected]/
Scores
CVSS v4
4.8
EPSS
0.0013
EPSS Percentile
2.8%
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-787
Status
published
Products (2)
bzip2/bzip2
< 1.0.8
bzip2/bzip2
35d122a3df8b0cc4082a4d89fdc6ee99f375fe67
Published
May 28, 2026
Tracked Since
May 28, 2026